I really like the Conti GP4000 and haev as many flats as I did with the Bontrager Racelite Hardcases and Armadillos. The Contis roll so nicely though. I have had 1 catastrophic failure on each of those tires I listed and maybe 2 instances when glass got through. I do 15 miles each way to work through relatively rough roads and debris and I think I have fared pretty well.

Tire pressure makes one of the biggest differences in preventing flats.